AP Medium Battery Slide Viewer Discontinued The Silent Wave Motor utilises

The Silent Wave Motor utilises ultrasonic (inaudible) vibrations instead of a gear system to focus the lens

without the teleconverter in position

and then makes use of the surrounding points for maintaining focus while tracking erratically-moving subjects

A popular telephoto zoom designed for full-frame E-mount mirrorless cameras

This lightweight Z-mount teleconverter lets you extend your focal range1 to a telephoto one without the need for extra lenses

AP Medium Battery Slide Viewer Discontinued The Silent Wave Motor utilisesThe AP Slide Viewer Battery Operated is a tabletop viewer for 35mm slides. It features a bright and clear 2 x 2 inch viewing screen. The light bar lock provides constant illumination by not having to hold the button. It operates on two "AA" batteries (Not Included)